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authorMuQun Yang <ymuqun@hdfgroup.org>2002-11-13 16:38:43 (GMT)
committerMuQun Yang <ymuqun@hdfgroup.org>2002-11-13 16:38:43 (GMT)
commit8998dd48fd884fc5772d64a5638730f0251010b2 (patch)
tree52bee9b0a33ac1009b8c678ecc6e63c1d0e66f31 /test/dsets.c
parent93d91678f5a0c066806149fd8361daac35e2e268 (diff)
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[svn-r6089]
Purpose: Add a testing case for shuffling algorithm. Description: A control test: Since shuffling 8-bit array should not change the original result; so we use a 8-bit array to test whether after shuffling the array keeps the same values. Solution: Platforms tested: eirene,arabica,modi4 Misc. update: Update MANIFEST if you add or remove any file. Update release_docs/RELEASE for bug fixes, new features, etc. Update applicable document files too.
Diffstat (limited to 'test/dsets.c')
-rw-r--r--test/dsets.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/test/dsets.c b/test/dsets.c
index 3de7af3..672bd17 100644
--- a/test/dsets.c
+++ b/test/dsets.c
@@ -23,6 +23,7 @@ const char *FILENAME[] = {
#define DSET_COMPACT_IO_NAME "compact_io"
#define DSET_TCONV_NAME "tconv"
#define DSET_COMPRESS_NAME "compressed"
+#define DSET_ONEBYTE_SHUF_NAME "onebyte_shuffle"
#define DSET_BOGUS_NAME "bogus"
#define H5Z_BOGUS 305
@@ -799,6 +800,131 @@ test_compression(hid_t file)
return -1;
}
+
+/*-------------------------------------------------------------------------
+ * Function: test_onebyte_shuffle
+ *
+ * Purpose: Tests the 8-bit array with shuffling algorithm.
+ The shuffled array should be the same result as
+ that before the shuffling.
+ *
+ * Return: Success: 0
+ *
+ * Failure: -1
+ *
+ * Programmer: Kent Yang
+ * Wednesday, , 2002 Nov. 13th
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+test_onebyte_shuffle(hid_t file)
+{
+ hid_t dataset, space,dc;
+ const hsize_t size[2] = {10, 20};
+ const hsize_t chunk_size[2] = {10, 20};
+ unsigned char orig_data[10][20];
+ unsigned char new_data[10][20];
+ unsigned level;
+#ifndef H5_HAVE_FILTER_SHUFFLE
+ const char *not_supported;
+#endif
+
+ hsize_t i, j;
+
+#ifndef H5_HAVE_FILTER_SHUFFLE
+ not_supported = " Data shuffling is not supported.\n"
+ " The shuffling flag was not found when hdf5 was configured.";
+#endif
+
+ TESTING("8-bit shuffling (setup)");
+
+ /* Create the data space */
+ if ((space = H5Screate_simple(2, size, NULL))<0) goto error;
+
+ /* Use shuffling algorithm with 8-bit */
+ if((dc = H5Pcreate(H5P_DATASET_CREATE))<0) goto error;
+ if (H5Pset_chunk (dc, 2, chunk_size)<0) goto error;
+ level = sizeof(unsigned char);
+ if (level != 1) goto error;
+ if (H5Pset_shuffle (dc, level)<0) goto error;
+
+ /* Create the dataset */
+ if ((dataset = H5Dcreate(file, DSET_ONEBYTE_SHUF_NAME, H5T_NATIVE_UCHAR,
+ space,dc))<0) goto error;
+
+ for (i= 0;i< 10; i++)
+ for (j = 0; j < 20; j++)
+ orig_data[i][j] = rand();
+
+#ifdef H5_HAVE_FILTER_SHUFFLE
+ PASSED();
+#else
+ SKIPPED();
+ puts(not_supported);
+#endif
+
+ /*----------------------------------------------------------------------
+ * STEP 1: Test shuffling by setting up a chunked dataset and writing
+ * to it.
+ *----------------------------------------------------------------------
+ */
+ TESTING("8-bit shuffling (write)");
+
+ if (H5Dwrite(dataset, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ orig_data)<0)
+ goto error;
+#ifdef H5_HAVE_FILTER_SHUFFLE
+ PASSED();
+#else
+ SKIPPED();
+ puts(not_supported);
+#endif
+
+ /*----------------------------------------------------------------------
+ * STEP 2: Try to read the data we just wrote.
+ *----------------------------------------------------------------------
+ */
+ TESTING("8-bit shuffling (read)");
+
+ /* Read the dataset back */
+ if (H5Dread(dataset, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ new_data)<0)
+ goto error;
+
+ /* Check that the values read are the same as the values written */
+ for (i=0; i<size[0]; i++) {
+ for (j=0; j<size[1]; j++) {
+ if (new_data[i][j] != orig_data[i][j]) {
+ H5_FAILED();
+ printf(" Read different values than written.\n");
+ printf(" At index %lu,%lu\n",
+ (unsigned long)i, (unsigned long)j);
+ goto error;
+ }
+ }
+ }
+#ifdef H5_HAVE_FILTER_SHUFFLE
+ PASSED();
+#else
+ SKIPPED();
+ puts(not_supported);
+#endif
+
+ /*----------------------------------------------------------------------
+ * Cleanup
+ *----------------------------------------------------------------------
+ */
+ if (H5Pclose (dc)<0) goto error;
+ if (H5Dclose(dataset)<0) goto error;
+ return 0;
+
+ error:
+ return -1;
+}
+
/*-------------------------------------------------------------------------
* Function: test_multiopen
@@ -1019,6 +1145,7 @@ main(void)
nerrors += test_compact_io(fapl)<0 ?1:0;
nerrors += test_tconv(file)<0 ?1:0;
nerrors += test_compression(file)<0 ?1:0;
+ nerrors += test_onebyte_shuffle(file)<0 ?1:0;
nerrors += test_multiopen (file)<0 ?1:0;
nerrors += test_types(file)<0 ?1:0;